Better belt breaking

src/main/java/com/simibubi/create/content/contraptions/relays/belt/BeltBlock.java

@@ -474,6 +474,7 @@ public class BeltBlock extends HorizontalKineticBlock implements ITE<BeltTileEnt
 			BlockPos currentPos = nextSegmentPosition(state, pos, forward);
 			if (currentPos == null)
 				continue;
+			world.sendBlockBreakProgress(currentPos.hashCode(), currentPos, -1);
 			BlockState currentState = world.getBlockState(currentPos);
 			if (!AllBlocks.BELT.has(currentState))
 				continue;

src/main/java/com/simibubi/create/foundation/BreakProgressHook.java

@@ -0,0 +1,22 @@
+package com.simibubi.create.foundation;
+
+import com.simibubi.create.AllBlocks;
+import com.simibubi.create.content.contraptions.relays.belt.BeltBlock;
+import com.simibubi.create.content.contraptions.relays.belt.BeltTileEntity;
+
+import net.minecraft.client.renderer.WorldRenderer;
+import net.minecraft.client.world.ClientWorld;
+import net.minecraft.util.math.BlockPos;
+
+public class BreakProgressHook {
+
+	public static void whenBreaking(ClientWorld world, WorldRenderer renderer, int playerEntityId, BlockPos pos, int progress) {
+		if (AllBlocks.BELT.has(world.getBlockState(pos))) {
+			BeltTileEntity belt = (BeltTileEntity) world.getTileEntity(pos);
+
+			for (BlockPos beltPos : BeltBlock.getBeltChain(world, belt.getController())) {
+				renderer.sendBlockBreakProgress(beltPos.hashCode(), beltPos, progress);
+			}
+		}
+	}
+}

src/main/java/com/simibubi/create/foundation/mixin/BreakProgressMixin.java

@@ -0,0 +1,27 @@
+package com.simibubi.create.foundation.mixin;
+
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import com.simibubi.create.foundation.BreakProgressHook;
+
+import net.minecraft.client.renderer.WorldRenderer;
+import net.minecraft.client.world.ClientWorld;
+import net.minecraft.util.math.BlockPos;
+
+@Mixin(ClientWorld.class)
+public class BreakProgressMixin {
+	@Shadow
+	@Final
+	private WorldRenderer worldRenderer;
+	private final ClientWorld self = (ClientWorld) (Object) this;
+
+	@Inject(at = @At("HEAD"), method = "sendBlockBreakProgress")
+	private void onBreakProgress(int playerEntityId, BlockPos pos, int progress, CallbackInfo ci) {
+		BreakProgressHook.whenBreaking(self, this.worldRenderer, playerEntityId, pos, progress);
+	}
+}

src/main/resources/create.mixins.json

@@ -5,16 +5,17 @@
     "compatibilityLevel": "JAVA_8",
     "refmap": "create.refmap.json",
     "client": [
-        "TileWorldHookMixin",
+      "BreakProgressMixin",
       "CancelTileEntityRenderMixin",
+      "EntityContraptionInteractionMixin",
       "FogColorTrackerMixin",
       "LightUpdateMixin",
       "NetworkLightUpdateMixin",
       "RenderHooksMixin",
       "ShaderCloseMixin",
+      "StoreProjectionMatrixMixin",
       "TileRemoveMixin",
-        "EntityContraptionInteractionMixin",
-        "StoreProjectionMatrixMixin"
+      "TileWorldHookMixin"
     ],
     "injectors": {
         "defaultRequire": 1